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EN-MC21210 Magnesium vs. 4006 Aluminum

EN-MC21210 magnesium belongs to the magnesium alloys classification, while 4006 aluminum belongs to the aluminum alloys.

For each property being compared, the top bar is EN-MC21210 magnesium and the bottom bar is 4006 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 48
28 to 45
Elastic (Young's, Tensile) Modulus, GPa 44
69
Elongation at Break, % 14
3.4 to 24
Fatigue Strength, MPa 70
35 to 110
Poisson's Ratio 0.29
0.33
Shear Modulus, GPa 17
26
Shear Strength, MPa 110
70 to 91
Tensile Strength: Ultimate (UTS), MPa 190
110 to 160
Tensile Strength: Yield (Proof), MPa 90
62 to 140

Thermal Properties

Latent Heat of Fusion, J/g 350
410
Maximum Temperature: Mechanical, °C 100
160
Melting Completion (Liquidus), °C 600
640
Melting Onset (Solidus), °C 570
620
Specific Heat Capacity, J/kg-K 1000
900
Thermal Conductivity, W/m-K 120
220
Thermal Expansion, µm/m-K 27
23

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 24
56
Electrical Conductivity: Equal Weight (Specific), % IACS 130
180

Otherwise Unclassified Properties

Base Metal Price, % relative 12
9.0
Density, g/cm3 1.6
2.7
Embodied Carbon, kg CO2/kg material 24
8.1
Embodied Energy, MJ/kg 160
150
Embodied Water, L/kg 980
1180

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 22
5.1 to 26
Resilience: Unit (Modulus of Resilience), kJ/m3 92
28 to 130
Stiffness to Weight: Axial, points 15
14
Stiffness to Weight: Bending, points 72
50
Strength to Weight: Axial, points 32
11 to 16
Strength to Weight: Bending, points 44
19 to 24
Thermal Diffusivity, mm2/s 76
89
Thermal Shock Resistance, points 11
4.9 to 7.0

Alloy Composition


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Aluminum (Al), % 1.6 to 2.6
97.4 to 98.7
Chromium (Cr), % 0
0 to 0.2
Copper (Cu), % 0 to 0.010
0 to 0.1
Iron (Fe), % 0 to 0.0050
0.5 to 0.8
Magnesium (Mg), % 96.3 to 98.3
0 to 0.010
Manganese (Mn), % 0.1 to 0.7
0 to 0.050
Nickel (Ni), % 0 to 0.0020
0
Silicon (Si), % 0 to 0.1
0.8 to 1.2
Zinc (Zn), % 0 to 0.2
0 to 0.050
Residuals, % 0 to 0.010
0 to 0.15